Shop Notes 4/3 – Tesla Coil prelim experiment success

As a rough test it’s definitely not flashy, but it’s my first successful attempt to drive a Tesla coil with an external oscillator (HAM radio), and the first successful test with a grid bias board I had designed last month. See, most vacuum tube Tesla coils are usually armstrong oscillators that resonate against their own …

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Foundry/Metalcasting Experiments (Fall 2020)

Following experiments with a homemade plastic injection molding machine, the zeitgeist led me to construct and experiment with an aluminum metalcasting foundry. Inspiration: Summary:   I had great initial success following the blog as a guide for building a casting foundry, but eventually I ran into far too many issues with the burner. At first, …

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